Hydrogen (H) was first, followed by helium (He).
Answer:
false
Explanation:
the energy causes the bonds to become looser
Answer:
The relationship of the speed of sound, its frequency, and wavelength is the same as for all waves: vw = fλ, where vw is the speed of sound, f is its frequency, and λ is its wavelength. ... The more rigid (or less compressible) the medium, the faster the speed of sound
Explanation:
